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2.2 Applicable Modules
2.2.2 Precautions for using I/O modules and intelligent function modules
2
SYSTEM CONFIGURATION
(3) Precautions for using a MELSECNET/H module
The following restrictions are applied to the MELSECNET/H module controlled by the
C Controller module.
• The MELSECNET/H module cannot be used on a remote I/O network.
Use of the module is allowed on a PLC-to-PLC network only.
• The module cannot be used as a relay station for the data link transfer function or
the routing function.
When using either of these functions, use a MELSECNET/H module controlled
by a programmable controller CPU as a relay station.
• In a multiple CPU system, the host CPU (C Controller module) cannot
communicate via the MELSECNET/H module controlled by another CPU.
Another CPU also cannot communicate via the MELSECNET/H module
controlled by the host CPU.
The above is applied to the following communications.
• Communications with MELSOFT connection
• Communications using dedicated instructions
• Communications using intelligent function modules
• The link dedicated instructions for MELSECNET/H cannot be used.
Note that the message communication function equivalent to the SEND and
RECV instructions are available. ( Page 5-10, Section 5.3)
• Interrupt sequence program start is not applicable.
• The network diagnostics (test) function is not available.
• The simple dual-structure network function is not applicable.
(The network type cannot be set to "MNET/H standby station")
• When accessing to a redundant CPU on another station, the system of the
redundant CPU cannot be specified. Only host system access (station-number-
specified access) is available.
• The mode cannot be set to "Debug mode".
• The MELSEC data link functions cannot be used for the Q06CCPU-V-B.
For how to access a CPU module on another station when using the Q06CCPU-
V-B, refer to the following.
Page 5-10, Section 5.3
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